表格存储快速上手-宽表模型

简介: 宽表模型是(Wide column) Tablestore 采用的几个模型之一。宽表模型是 Schema-free 的,创建一张宽表仅需要定义 1-4个主键 结构,无需定义属性列结构,在插入数据时添加任意多个属性列即可。主键列表中第一个主键将作为分区键,按照分区键值的范围将数据负载均衡到多个分区 (Partition) 中。

小提示:快速体验表格存储 Tablestore CLI 工具前,请您先阅读《表格存储快速上手准备》


模型简介

宽表模型是(Wide column) Tablestore 采用的几个模型之一。宽表模型是 Schema-free 的,创建一张宽表仅需要定义 1-4个主键 结构,无需定义属性列结构,在插入数据时添加任意多个属性列即可。主键列表中第一个主键将作为分区键,按照分区键值的范围将数据负载均衡到多个分区 (Partition) 中。

以订单场景为例,一张订单数据表order的表主键为_id,包含了若干个属性列,例如: cName(消费者姓名),pType(产品类型),sld(售货员ID),total_Price(订单总价格)等等。对应的宽表数据结构如下图所示

WideColumnTable.png

订单表数据结构

下面将带您快速体验使用 Tablestore CLI 工具如何实现对上述订单表order的基本操作。


宽表操作

  • 创建数据表。执行 create 命令创建一张订单表,表名为 order。
create -t order --pk '[{"c":"id","t":"string"}]'


  • 选择数据表。执行 use --wc 命令选择操作 order 表。
use --wc -t order


  • 数据导入。这里提供两种方式导入数据,二选一即可。
  • 自定义数据,执行 put命令单行写入。示例中写入了5条订单数据。
put --pk '["0000000f470ef0f548b925ceffe1a7e3"]' --attr '[{"c":"pBrand","v":"oppo"},{"c":"pPrice","v":2498.99},{"c":"totalPrice","v":1599.0},{"c":"sName","v":"售郑七"},{"c":"pId","v":"p0004001"},{"c":"oId","v":"o0057022192"},{"c":"hasPaid","v":false},{"c":"sId","v":"s0007"},{"c":"orderTime","v":1518510583886,"isint":true},{"c":"pName","v":"oppo K1"},{"c":"cName","v":"消郑七"},{"c":"pType","v":"手机"},{"c":"pCount","v":1,"isint":true},{"c":"cId","v":"c0017"}]'
put --pk '["000000114d884ca1dbd6b9a58e8d0d94"]' --attr '[{"c":"pBrand","v":"vivo"},{"c":"pPrice","v":1599.0},{"c":"payTime","v":1509615334404,"isint":true},{"c":"totalPrice","v":2498.99},{"c":"sName","v":"售周五"},{"c":"pId","v":"p0003004"},{"c":"oId","v":"o0039248410"},{"c":"hasPaid","v":true},{"c":"sId","v":"s0015"},{"c":"orderTime","v":1509614885965,"isint":true},{"c":"pName","v":"vivo x21"},{"c":"cName","v":"消冯八"},{"c":"pType","v":"手机"},{"c":"pCount","v":1,"isint":true},{"c":"cId","v":"c0018"}]'
put --pk '["0000004dbeb751e77cf0b3f0da90b6ee"]' --attr '[{"c":"pBrand","v":"小米"},{"c":"pPrice","v":2002.0},{"c":"payTime","v":1491560220742,"isint":true},{"c":"totalPrice","v":6006.0},{"c":"sName","v":"售楚十"},{"c":"pId","v":"p0005001"},{"c":"oId","v":"o0003171350"},{"c":"hasPaid","v":true},{"c":"sId","v":"s0021"},{"c":"orderTime","v":1491560154808,"isint":true},{"c":"pName","v":"小米 pad"},{"c":"cName","v":"消赵一"},{"c":"pType","v":"平板"},{"c":"pCount","v":3,"isint":true},{"c":"cId","v":"c0022"}]'
put --pk '["00000057f33ff1d0a2d00ff6dbf4c411"]' --attr '[{"c":"pBrand","v":"oppo"},{"c":"pPrice","v":3199.98},{"c":"totalPrice","v":3199.98},{"c":"sName","v":"售周五"},{"c":"pId","v":"p0004003"},{"c":"oId","v":"o0036473830"},{"c":"hasPaid","v":false},{"c":"sId","v":"s0015"},{"c":"orderTime","v":1508226047439,"isint":true},{"c":"pName","v":"oppo R17"},{"c":"cName","v":"消吴六"},{"c":"pType","v":"手机"},{"c":"pCount","v":1,"isint":true},{"c":"cId","v":"d0006"}]'
put --pk '["0000005be2b43dd134eae18ebe079774"]' --attr '[{"c":"pBrand","v":"小米"},{"c":"pPrice","v":2299.21},{"c":"totalPrice","v":6897.63},{"c":"sName","v":"售郑七"},{"c":"pId","v":"p0005003"},{"c":"oId","v":"o0035062633"},{"c":"hasPaid","v":false},{"c":"sId","v":"s0007"},{"c":"orderTime","v":1507519847532,"isint":true},{"c":"pName","v":"小米 6"},{"c":"cName","v":"消周五"},{"c":"pType","v":"手机"},{"c":"pCount","v":3,"isint":true},{"c":"cId","v":"c0015"}]'


  • 下载样例数据压缩包到本地并解压。执行 import 命令批量导入。样例数据中共包含100万条订单数据,可通过 import -l 参数自定义导入行数(1000万行内免费使用),示例中导入了5万条订单数据。yourFilePath表示样例数据压缩包解压后的路径。


导入命令

import -i yourFilePath --ignore_version -l 50000

日志输出

Current speed is: 10000 rows/s. Total succeed count 10000, failed count 0.
Current speed is: 12600 rows/s. Total succeed count 22600, failed count 0.
Current speed is: 17200 rows/s. Total succeed count 39800, failed count 0.
Import finished, total count is 50000, failed 0 rows.


  • 执行 get命令按照 order_Md5 和 order_id 查询一行数据。
get --pk '["0000005be2b43dd134eae18ebe079774"]'

输出

+----------------------------------+-------+--------+---------+-------------+---------------+--------+--------+----------+--------+---------+-------+-------+--------+------------+
| id                               | cId   | cName  | hasPaid | oId         | orderTime     | pBrand | pCount | pId      | pName  | pPrice  | pType | sId   | sName  | totalPrice |
+----------------------------------+-------+--------+---------+-------------+---------------+--------+--------+----------+--------+---------+-------+-------+--------+------------+
| 0000005be2b43dd134eae18ebe079774 | c0015 | 消周五  | false   | o0035062633 | 1507519847532 | 小米   | 3       | p0005003 | 小米 6 | 2299.21 | 手机   | s0017 | 售郑七 | 6897.63     |
+----------------------------------+-------+--------+---------+-------------+---------------+--------+--------+----------+--------+---------+-------+-------+--------+------------+


  • 执行 scan 命令查询多行数据。示例中查询了5条订单数据。
scan -l 5

输出

+----------------------------------+-------+--------+---------+-------------+--------------------+--------+--------+----------+----------+---------+-------+-------+--------+------------+--------------------+
| id                               | cId   | cName  | hasPaid | oId         | orderTime          | pBrand | pCount | pId      | pName    | pPrice  | pType | sId   | sName  | totalPrice | payTime            |
+----------------------------------+-------+--------+---------+-------------+--------------------+--------+--------+----------+----------+---------+-------+-------+--------+------------+--------------------+
| 0000000f470ef0f548b925ceffe1a7e3 | c0017 | 消郑七  | false   | o0057022192 | 1.518510583886e+12 | oppo   | 1      | p0004001 | oppo K1  | 2498.99 | 手机   | s0007 | 售郑七 | 1599        |                    |
+----------------------------------+-------+--------+---------+-------------+--------------------+--------+--------+----------+----------+---------+-------+-------+--------+------------+--------------------+
| 000000114d884ca1dbd6b9a58e8d0d94 | c0018 | 消冯八  | true    | o0039248410 | 1.509614885965e+12 | vivo   | 1      | p0003004 | vivo x21 | 1599    | 手机   | s0015 | 售周五 | 2498.99     | 1.509615334404e+12 |
+----------------------------------+-------+--------+---------+-------------+--------------------+--------+--------+----------+----------+---------+-------+-------+--------+------------+--------------------+
| 0000004dbeb751e77cf0b3f0da90b6ee | c0022 | 消赵一  | true    | o0003171350 | 1.491560154808e+12 | 小米    | 3      | p0005001 | 小米 pad | 2002    | 平板   | s0021 | 售楚十 | 6006        | 1.491560220742e+12 |
+----------------------------------+-------+--------+---------+-------------+--------------------+--------+--------+----------+----------+---------+-------+-------+--------+------------+--------------------+
| 00000057f33ff1d0a2d00ff6dbf4c411 | d0006 | 消吴六  | false   | o0036473830 | 1508226047439      | oppo   | 1      | p0004003 | oppo R17 | 3199.98 | 手机   | s0015 | 售周五 | 3199.98     |                    |
+----------------------------------+-------+--------+---------+-------------+--------------------+--------+--------+----------+----------+---------+-------+-------+--------+------------+--------------------+
| 0000005be2b43dd134eae18ebe079774 | c0015 | 消周五  | false   | o0035062633 | 1507519847532      | 小米    | 3      | p0005003 | 小米 6   | 2299.21 | 手机   | s0017 | 售郑七 | 6897.63     |                    |
+----------------------------------+-------+--------+---------+-------------+--------------------+--------+--------+----------+----------+---------+-------+-------+--------+------------+--------------------+


SQL模式

  • 执行 sql 命令进入 SQL 命令行模式,可通过 sql 语句查询数据表。
sql
  • 建立 order 数据表的映射表。可执行 describe `order` 查看订单表 order 的映射表是否已创建,若已创建则跳过此步骤。
CREATETABLE `order` (    `id` VARCHAR(1024),    `cId` MEDIUMTEXT,    `cName` MEDIUMTEXT,    `hasPaid` BOOL,    `oId` MEDIUMTEXT,    `orderTime` BIGINT(20),    `pBrand` MEDIUMTEXT,    `pCount` BIGINT(20),    `pId` MEDIUMTEXT,    `pName` MEDIUMTEXT,    `pPrice` DOUBLE,    `pType` MEDIUMTEXT,    `payTime` BIGINT(20),    `sId` MEDIUMTEXT,    `sName` MEDIUMTEXT,    `totalPrice` DOUBLE,    PRIMARY KEY(`id`));


示例一:查询10条售货员姓名为“售周五”的订单,按照订单总金额升序排列。
select*from `order` 
where sName ="售周五"orderby totalPrice asclimit10;

输出

+----------------------------------+-------+--------+---------+-------------+---------------+--------+--------+----------+---------+--------+-------+---------------+-------+--------+------------+
| id                               | cId   | cName  | hasPaid | oId         | orderTime     | pBrand | pCount | pId      | pName   | pPrice | pType | payTime       | sId   | sName  | totalPrice |
+----------------------------------+-------+--------+---------+-------------+---------------+--------+--------+----------+---------+--------+-------+---------------+-------+--------+------------+
| 000d63a8240fd5798ae533fab9627fbd | c0018 | 消冯八  | true    | o0067305260 | 1523656305350 | 小米    | 1      | p0005004 | 红米 5s  | 499.01 | 手机  | 1523656890642 | s0005 | 售周五  | 499.01     |
+----------------------------------+-------+--------+---------+-------------+---------------+--------+--------+----------+---------+--------+-------+---------------+-------+--------+------------+
| 000b836ed542c958f8f1e77edfbb7d77 | c0022 | 消赵一  | false   | o0013980680 | 1496968800141 | 小米    | 1      | p0005004 | 红米 5s  | 499.01 | 手机  | null          | s0015 | 售周五  | 499.01     |
+----------------------------------+-------+--------+---------+-------------+---------------+--------+--------+----------+---------+--------+-------+---------------+-------+--------+------------+
| 000bdf5a862e44e6055861cd82048b68 | d0006 | 消吴六  | true    | o0086746505 | 1533387384921 | 小米    | 1      | p0005004 | 红米 5s  | 499.01 | 手机  | 1533387459564 | s0015 | 售周五  | 499.01     |
+----------------------------------+-------+--------+---------+-------------+---------------+--------+--------+----------+---------+--------+-------+---------------+-------+--------+------------+
| 0005843fd4595d992dd656a6dfda3956 | d0016 | 消吴六  | false   | o0048417764 | 1514203877923 | 小米    | 1      | p0005004 | 红米 5s  | 499.01 | 手机  | null          | s0005 | 售周五  | 499.01     |
+----------------------------------+-------+--------+---------+-------------+---------------+--------+--------+----------+---------+--------+-------+---------------+-------+--------+------------+
| 000604f8ffb6e3b5198da05a804d9738 | c0018 | 消冯八  | true    | o0022405938 | 1501185776343 | 小米    | 1      | p0005004 | 红米 5s  | 499.01 | 手机  | 1501186194040 | s0015 | 售周五  | 499.01     |
+----------------------------------+-------+--------+---------+-------------+---------------+--------+--------+----------+---------+--------+-------+---------------+-------+--------+------------+
| 000281b2afb0e19b750dca4477b6c5c0 | c0018 | 消冯八  | false   | o0002835300 | 1491391860673 | 小米    | 1      | p0005004 | 红米 5s  | 499.01 | 手机  | null          | s0015 | 售周五  | 499.01     |
+----------------------------------+-------+--------+---------+-------------+---------------+--------+--------+----------+---------+--------+-------+---------------+-------+--------+------------+
| 0002bf3bfeff3296d72e13a95fe503e6 | c0015 | 消周五  | false   | o0022955766 | 1501461219307 | 小米    | 1      | p0005004 | 红米 5s  | 499.01 | 手机  | null          | s0015 | 售周五  | 499.01     |
+----------------------------------+-------+--------+---------+-------------+---------------+--------+--------+----------+--------- +--------+-------+---------------+-------+--------+------------+
| 00035d195c8d7a1273b9d7a603b97bf5 | c0022 | 消赵一  | false   | o0036716450 | 1508347328100 | 小米    | 1      | p0005004 | 红米 5s  | 499.01 | 手机  | null          | s0015 | 售周五  | 499.01     |
+----------------------------------+-------+--------+---------+-------------+---------------+--------+--------+----------+---------+--------+-------+---------------+-------+--------+------------+
| 0000f560b62779285e86947f8e8d0e4c | c0008 | 消冯八  | false   | o0000826505 | 1490386088808 | 小米    | 1      | p0005004 | 红米 5s  | 499.01 | 手机  | null          | s0015 | 售周五  | 499.01     |
+----------------------------------+-------+--------+---------+-------------+---------------+--------+--------+----------+---------+--------+-------+---------------+-------+--------+------------+
| 00026613c323ad57e57a87730f316f94 | c0018 | 消冯八  | false   | o0094575530 | 1537306505439 | 小米    | 1      | p0005004 | 红米 5s  | 499.01 | 手机  | null          | s0015 | 售周五  | 499.01     |
+----------------------------------+-------+--------+---------+-------------+---------------+--------+--------+----------+---------+--------+-------+---------------+-------+--------+------------+


示例二:统计产品类型为“手机”的订单条数
selectcount(*)from `order`
where pType ="手机";

输出

+----------+
| count(*) |
+----------+
| 33915    |
+----------+


示例3:统计产品个数大于1的订单条数
selectcount(*)from `order`
where pCount >1;

输出

+----------+
| count(*) |
+----------+
| 33481    |
+----------+


退出 sql 模式

exit;

退出 cli 工具

exit


高级特性

多元索引提供了丰富的查询方式和数据聚合能力,例如全文检索、多列排序、分组、求和等等。多元索引在SQL查询加速方面也有着很好的特性,下面将再导入一百万条订单数据(这里不作展示,参考上文导入),使用SQL查询。

执行 create_search_index 命令创建多元索引。

注意:创建多元索引后会按照表中数据量大小产生少量费用,删除索引后停止计费。多元索引创建后需要等待一段时间,数据表中的数据将以异步的方式自动同步到索引中。

create_search_index-torder-norder_index{
"IndexSetting": null,
"FieldSchemas": [{
"FieldName": "id",
"FieldType": "KEYWORD",
"Index": true,
"EnableSortAndAgg": true,
"Store": true     }, {
"FieldName": "cId",
"FieldType": "KEYWORD",
"Index": true,
"EnableSortAndAgg": true,
"Store": true     }, {
"FieldName": "cName",
"FieldType": "KEYWORD",
"Index": true,
"EnableSortAndAgg": true,
"Store": true     }, {
"FieldName": "hasPaid",
"FieldType": "BOOLEAN",
"Index": true,
"EnableSortAndAgg": true,
"Store": true     }, {
"FieldName": "oId",
"FieldType": "KEYWORD",
"Index": true,
"EnableSortAndAgg": true,
"Store": true     }, {
"FieldName": "orderTime",
"FieldType": "LONG",
"Index": true,
"EnableSortAndAgg": true,
"Store": true     }, {
"FieldName": "pBrand",
"FieldType": "KEYWORD",
"Index": true,
"EnableSortAndAgg": true,
"Store": true     }, {
"FieldName": "pCount",
"FieldType": "LONG",
"Index": true,
"EnableSortAndAgg": true,
"Store": true     }, {
"FieldName": "pId",
"FieldType": "KEYWORD",
"Index": true,
"EnableSortAndAgg": true,
"Store": true     }, {
"FieldName": "pName",
"FieldType": "TEXT",
"Index": true,
"EnableSortAndAgg": false,
"Store": true     }, {
"FieldName": "pPrice",
"FieldType": "DOUBLE",
"Index": true,
"EnableSortAndAgg": true,
"Store": true     }, {
"FieldName": "pType",
"FieldType": "KEYWORD",
"Index": true,
"EnableSortAndAgg": true,
"Store": true     }, {
"FieldName": "sId",
"FieldType": "KEYWORD",
"Index": true,
"EnableSortAndAgg": true,
"Store": true     }, {
"FieldName": "sName",
"FieldType": "KEYWORD",
"Index": true,
"EnableSortAndAgg": true,
"Store": true     }, {
"FieldName": "totalPrice",
"FieldType": "DOUBLE",
"Index": true,
"EnableSortAndAgg": true,
"Store": true     }]
 }


示例一:统计所有订单数量
selectcount(*)from `order`;

输出

+----------+
| count(*) |
+----------+
| 1000000  |
+----------+


示例二:统计每个品牌的订单数量
select pBrand,count(*)from `order` 
groupby pBrand;

输出

+--------+----------+
| pBrand | count(*) |
+--------+----------+
| 联想   | 304252   |
+--------+----------+
| oppo   | 242513   |
+--------+----------+
| vivo   | 162539   |
+--------+----------+
| 小米   | 194543   |
+--------+----------+
| 苹果   | 96153    |
+--------+----------+
示例三:检索所有产品名包含 “iphone” 并且消费者姓名为“消赵一”并且已经支付的订单,返回前面10条订单。
select*from `order` 
where payTime isnotnulland cName ="消赵一"and pName like"%iphone%"limit10;

输出

+----------------------------------+-------+--------+---------+-------------+---------------+--------+--------+----------+-----------+--------+-------+---------------+-------+--------+------------+
| id                               | cId   | cName  | hasPaid | oId         | orderTime     | pBrand | pCount | pId      | pName     | pPrice | pType | payTime       | sId   | sName  | totalPrice |
+----------------------------------+-------+--------+---------+-------------+---------------+--------+--------+----------+-----------+--------+-------+---------------+-------+--------+------------+
| 000031205a858155c4cce6d464642086 | c0022 | 消赵一  | true    | o0035222739 | 1507599844791 | 苹果    | 3      | p0001005 | iphone X  | 8989   | 手机  | 1507600392490 | s0021 | 售楚十  | 26967      |
+----------------------------------+-------+--------+---------+-------------+---------------+--------+--------+----------+-----------+--------+-------+---------------+-------+--------+------------+
| 00003ee288bbb3dab82e25276f63c954 | c0011 | 消赵一  | true    | o0001755823 | 1490851467185 | 苹果    | 2      | p0001003 | iphone 7  | 7979   | 手机  | 1490851509652 | s0007 | 售郑七  | 15958      |
+----------------------------------+-------+--------+---------+-------------+---------------+--------+--------+----------+-----------+--------+-------+---------------+-------+--------+------------+
| 00004fecfa2d58cd9b22a31e6875f320 | c0021 | 消赵一  | true    | o0039692760 | 1509836893267 | 苹果    | 2      | p0001004 | iphone 7p | 8080   | 手机  | 1509837292095 | s0019 | 售陈九  | 16160      |
+----------------------------------+-------+--------+---------+-------------+---------------+--------+--------+----------+-----------+--------+-------+---------------+-------+--------+------------+
| 000055fe36693b07ca1ae2a7803df3f4 | c0021 | 消赵一  | true    | o0028497546 | 1504234632705 | 苹果    | 1      | p0001002 | iphone 6p | 7070   | 手机  | 1504234649071 | s0017 | 售郑七  | 7070       |
+----------------------------------+-------+--------+---------+-------------+---------------+--------+--------+----------+-----------+--------+-------+---------------+-------+--------+------------+
| 00005db15274cc3f128a9721ff2efb53 | c0021 | 消赵一  | true    | o0025763782 | 1502866718223 | 苹果    | 1      | p0001005 | iphone X  | 8989   | 手机  | 1502867272695 | s0011 | 售赵一  | 8989       |
+----------------------------------+-------+--------+---------+-------------+---------------+--------+--------+----------+-----------+--------+-------+---------------+-------+--------+------------+
| 0000d0716e693fed72555f8e4a4537b3 | c0021 | 消赵一  | true    | o0097412099 | 1538725936411 | 苹果    | 1      | p0001002 | iphone 6p | 7070   | 手机  | 1538726211705 | s0018 | 售冯八  | 7070       |
+----------------------------------+-------+--------+---------+-------------+---------------+--------+--------+----------+-----------+--------+-------+---------------+-------+--------+------------+
| 0000d4f73247516c1d7aad99721c610f | c0022 | 消赵一  | true    | o0061144390 | 1520573840081 | 苹果    | 1      | p0001004 | iphone 7p | 8080   | 手机  | 1520574004218 | s0021 | 售楚十  | 8080       |
+----------------------------------+-------+--------+---------+-------------+---------------+--------+--------+----------+-----------+--------+-------+---------------+-------+--------+------------+
| 0000fe74dbccc478a3db91fadd06ffeb | c0021 | 消赵一  | true    | o0073210619 | 1526613119777 | 苹果    | 1      | p0001003 | iphone 7  | 7979   | 手机  | 1526613369627 | s0011 | 售赵一  | 7979       |
+----------------------------------+-------+--------+---------+-------------+---------------+--------+--------+----------+-----------+--------+-------+---------------+-------+--------+------------+
| 0001daac925913db5a995dca78701f60 | c0021 | 消赵一  | true    | o0092439401 | 1536237095817 | 苹果    | 2      | p0001005 | iphone X  | 8989   | 手机  | 1536237549982 | s0016 | 售吴六  | 17978      |
+----------------------------------+-------+--------+---------+-------------+---------------+--------+--------+----------+-----------+--------+-------+---------------+-------+--------+------------+
| 0002341af23476b87bdc3599826c0a96 | c0023 | 消赵一  | true    | o0089564235 | 1534798174984 | 苹果    | 3      | p0001004 | iphone 7p | 8080   | 手机  | 1534798468123 | s0014 | 售李四  | 24240      |
+----------------------------------+-------+--------+---------+-------------+---------------+--------+--------+----------+-----------+--------+-------+---------------+-------+--------+------------+


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